21635475

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 38568960

約数和(自身を除く): 16933485

約数列:

[1, 3, 5, 15, 17, 25, 51, 71, 75, 85, 213, 239, 255, 355, 425, 717, 1065, 1195, 1207, 1275, 1775, 3585, 3621, 4063, 5325, 5975, 6035, 12189, 16969, 17925, 18105, 20315, 30175, 50907, 60945, 84845, 90525, 101575, 254535, 288473, 304725, 424225, 865419, 1272675, 1442365, 4327095, 7211825, 21635475]

約数ペア:

[(1, 21635475), (3, 7211825), (5, 4327095), (15, 1442365), (17, 1272675), (25, 865419), (51, 424225), (71, 304725), (75, 288473), (85, 254535), (213, 101575), (239, 90525), (255, 84845), (355, 60945), (425, 50907), (717, 30175), (1065, 20315), (1195, 18105), (1207, 17925), (1275, 16969), (1775, 12189), (3585, 6035), (3621, 5975), (4063, 5325)]