21316100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{863}}^1$

素因数の和:909

約数の個数: 72

約数和(自身を含む): 52496640

約数和(自身を除く): 31180540

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 95, 100, 130, 190, 247, 260, 325, 380, 475, 494, 650, 863, 950, 988, 1235, 1300, 1726, 1900, 2470, 3452, 4315, 4940, 6175, 8630, 11219, 12350, 16397, 17260, 21575, 22438, 24700, 32794, 43150, 44876, 56095, 65588, 81985, 86300, 112190, 163970, 213161, 224380, 280475, 327940, 409925, 426322, 560950, 819850, 852644, 1065805, 1121900, 1639700, 2131610, 4263220, 5329025, 10658050, 21316100]

約数ペア:

[(1, 21316100), (2, 10658050), (4, 5329025), (5, 4263220), (10, 2131610), (13, 1639700), (19, 1121900), (20, 1065805), (25, 852644), (26, 819850), (38, 560950), (50, 426322), (52, 409925), (65, 327940), (76, 280475), (95, 224380), (100, 213161), (130, 163970), (190, 112190), (247, 86300), (260, 81985), (325, 65588), (380, 56095), (475, 44876), (494, 43150), (650, 32794), (863, 24700), (950, 22438), (988, 21575), (1235, 17260), (1300, 16397), (1726, 12350), (1900, 11219), (2470, 8630), (3452, 6175), (4315, 4940)]