21476650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:128

約数の個数: 96

約数和(自身を含む): 47496960

約数和(自身を除く): 26020310

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 37, 38, 47, 50, 65, 74, 94, 95, 130, 185, 190, 235, 247, 325, 370, 470, 475, 481, 494, 611, 650, 703, 893, 925, 950, 962, 1175, 1222, 1235, 1406, 1739, 1786, 1850, 2350, 2405, 2470, 3055, 3478, 3515, 4465, 4810, 6110, 6175, 7030, 8695, 8930, 9139, 11609, 12025, 12350, 15275, 17390, 17575, 18278, 22325, 22607, 23218, 24050, 30550, 33041, 35150, 43475, 44650, 45214, 45695, 58045, 66082, 86950, 91390, 113035, 116090, 165205, 226070, 228475, 290225, 330410, 429533, 456950, 565175, 580450, 826025, 859066, 1130350, 1652050, 2147665, 4295330, 10738325, 21476650]

約数ペア:

[(1, 21476650), (2, 10738325), (5, 4295330), (10, 2147665), (13, 1652050), (19, 1130350), (25, 859066), (26, 826025), (37, 580450), (38, 565175), (47, 456950), (50, 429533), (65, 330410), (74, 290225), (94, 228475), (95, 226070), (130, 165205), (185, 116090), (190, 113035), (235, 91390), (247, 86950), (325, 66082), (370, 58045), (470, 45695), (475, 45214), (481, 44650), (494, 43475), (611, 35150), (650, 33041), (703, 30550), (893, 24050), (925, 23218), (950, 22607), (962, 22325), (1175, 18278), (1222, 17575), (1235, 17390), (1406, 15275), (1739, 12350), (1786, 12025), (1850, 11609), (2350, 9139), (2405, 8930), (2470, 8695), (3055, 7030), (3478, 6175), (3515, 6110), (4465, 4810)]