21782150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 47996928

約数和(自身を除く): 26214778

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 31, 46, 47, 50, 62, 65, 94, 115, 130, 155, 230, 235, 299, 310, 325, 403, 470, 575, 598, 611, 650, 713, 775, 806, 1081, 1150, 1175, 1222, 1426, 1457, 1495, 1550, 2015, 2162, 2350, 2914, 2990, 3055, 3565, 4030, 5405, 6110, 7130, 7285, 7475, 9269, 10075, 10810, 14053, 14570, 14950, 15275, 17825, 18538, 18941, 20150, 27025, 28106, 30550, 33511, 35650, 36425, 37882, 46345, 54050, 67022, 70265, 72850, 92690, 94705, 140530, 167555, 189410, 231725, 335110, 351325, 435643, 463450, 473525, 702650, 837775, 871286, 947050, 1675550, 2178215, 4356430, 10891075, 21782150]

約数ペア:

[(1, 21782150), (2, 10891075), (5, 4356430), (10, 2178215), (13, 1675550), (23, 947050), (25, 871286), (26, 837775), (31, 702650), (46, 473525), (47, 463450), (50, 435643), (62, 351325), (65, 335110), (94, 231725), (115, 189410), (130, 167555), (155, 140530), (230, 94705), (235, 92690), (299, 72850), (310, 70265), (325, 67022), (403, 54050), (470, 46345), (575, 37882), (598, 36425), (611, 35650), (650, 33511), (713, 30550), (775, 28106), (806, 27025), (1081, 20150), (1150, 18941), (1175, 18538), (1222, 17825), (1426, 15275), (1457, 14950), (1495, 14570), (1550, 14053), (2015, 10810), (2162, 10075), (2350, 9269), (2914, 7475), (2990, 7285), (3055, 7130), (3565, 6110), (4030, 5405)]