21014744420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{947}}^1\times {\mathrm{2539}}^1$

素因数の和:3537

約数の個数: 96

約数和(自身を含む): 48543667200

約数和(自身を除く): 27528922780

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 947, 1748, 1894, 2185, 2539, 3788, 4370, 4735, 5078, 8740, 9470, 10156, 12695, 17993, 18940, 21781, 25390, 35986, 43562, 48241, 50780, 58397, 71972, 87124, 89965, 96482, 108905, 116794, 179930, 192964, 217810, 233588, 241205, 291985, 359860, 413839, 435620, 482410, 583970, 827678, 964820, 1109543, 1167940, 1655356, 2069195, 2219086, 2404433, 4138390, 4438172, 4808866, 5547715, 8276780, 9617732, 11095430, 12022165, 22190860, 24044330, 45684227, 48088660, 55301959, 91368454, 110603918, 182736908, 221207836, 228421135, 276509795, 456842270, 553019590, 913684540, 1050737221, 1106039180, 2101474442, 4202948884, 5253686105, 10507372210, 21014744420]

約数ペア:

[(1, 21014744420), (2, 10507372210), (4, 5253686105), (5, 4202948884), (10, 2101474442), (19, 1106039180), (20, 1050737221), (23, 913684540), (38, 553019590), (46, 456842270), (76, 276509795), (92, 228421135), (95, 221207836), (115, 182736908), (190, 110603918), (230, 91368454), (380, 55301959), (437, 48088660), (460, 45684227), (874, 24044330), (947, 22190860), (1748, 12022165), (1894, 11095430), (2185, 9617732), (2539, 8276780), (3788, 5547715), (4370, 4808866), (4735, 4438172), (5078, 4138390), (8740, 2404433), (9470, 2219086), (10156, 2069195), (12695, 1655356), (17993, 1167940), (18940, 1109543), (21781, 964820), (25390, 827678), (35986, 583970), (43562, 482410), (48241, 435620), (50780, 413839), (58397, 359860), (71972, 291985), (87124, 241205), (89965, 233588), (96482, 217810), (108905, 192964), (116794, 179930)]