21417760

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1471}}^1$

素因数の和:1506

約数の個数: 96

約数和(自身を含む): 62318592

約数和(自身を除く): 40900832

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 364, 416, 455, 520, 560, 728, 910, 1040, 1120, 1456, 1471, 1820, 2080, 2912, 2942, 3640, 5884, 7280, 7355, 10297, 11768, 14560, 14710, 19123, 20594, 23536, 29420, 38246, 41188, 47072, 51485, 58840, 76492, 82376, 95615, 102970, 117680, 133861, 152984, 164752, 191230, 205940, 235360, 267722, 305968, 329504, 382460, 411880, 535444, 611936, 669305, 764920, 823760, 1070888, 1338610, 1529840, 1647520, 2141776, 2677220, 3059680, 4283552, 5354440, 10708880, 21417760]

約数ペア:

[(1, 21417760), (2, 10708880), (4, 5354440), (5, 4283552), (7, 3059680), (8, 2677220), (10, 2141776), (13, 1647520), (14, 1529840), (16, 1338610), (20, 1070888), (26, 823760), (28, 764920), (32, 669305), (35, 611936), (40, 535444), (52, 411880), (56, 382460), (65, 329504), (70, 305968), (80, 267722), (91, 235360), (104, 205940), (112, 191230), (130, 164752), (140, 152984), (160, 133861), (182, 117680), (208, 102970), (224, 95615), (260, 82376), (280, 76492), (364, 58840), (416, 51485), (455, 47072), (520, 41188), (560, 38246), (728, 29420), (910, 23536), (1040, 20594), (1120, 19123), (1456, 14710), (1471, 14560), (1820, 11768), (2080, 10297), (2912, 7355), (2942, 7280), (3640, 5884)]