21715171920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2319997}}^1$

素因数の和:2320029

約数の個数: 120

約数和(自身を含む): 78536572296

約数和(自身を除く): 56821400376

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3120, 4680, 9360, 2319997, 4639994, 6959991, 9279988, 11599985, 13919982, 18559976, 20879973, 23199970, 27839964, 30159961, 34799955, 37119952, 41759946, 46399940, 55679928, 60319922, 69599910, 83519892, 90479883, 92799880, 104399865, 111359856, 120639844, 139199820, 150799805, 167039784, 180959766, 185599760, 208799730, 241279688, 271439649, 278399640, 301599610, 334079568, 361919532, 417599460, 452399415, 482559376, 542879298, 556799280, 603199220, 723839064, 835198920, 904798830, 1085758596, 1206398440, 1357198245, 1447678128, 1670397840, 1809597660, 2171517192, 2412796880, 2714396490, 3619195320, 4343034384, 5428792980, 7238390640, 10857585960, 21715171920]

約数ペア:

[(1, 21715171920), (2, 10857585960), (3, 7238390640), (4, 5428792980), (5, 4343034384), (6, 3619195320), (8, 2714396490), (9, 2412796880), (10, 2171517192), (12, 1809597660), (13, 1670397840), (15, 1447678128), (16, 1357198245), (18, 1206398440), (20, 1085758596), (24, 904798830), (26, 835198920), (30, 723839064), (36, 603199220), (39, 556799280), (40, 542879298), (45, 482559376), (48, 452399415), (52, 417599460), (60, 361919532), (65, 334079568), (72, 301599610), (78, 278399640), (80, 271439649), (90, 241279688), (104, 208799730), (117, 185599760), (120, 180959766), (130, 167039784), (144, 150799805), (156, 139199820), (180, 120639844), (195, 111359856), (208, 104399865), (234, 92799880), (240, 90479883), (260, 83519892), (312, 69599910), (360, 60319922), (390, 55679928), (468, 46399940), (520, 41759946), (585, 37119952), (624, 34799955), (720, 30159961), (780, 27839964), (936, 23199970), (1040, 20879973), (1170, 18559976), (1560, 13919982), (1872, 11599985), (2340, 9279988), (3120, 6959991), (4680, 4639994), (9360, 2319997)]