21104580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{461}}^1$

素因数の和:589

約数の個数: 96

約数和(自身を含む): 68302080

約数和(自身を除く): 47197500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 109, 140, 210, 218, 327, 420, 436, 461, 545, 654, 763, 922, 1090, 1308, 1383, 1526, 1635, 1844, 2180, 2289, 2305, 2766, 3052, 3227, 3270, 3815, 4578, 4610, 5532, 6454, 6540, 6915, 7630, 9156, 9220, 9681, 11445, 12908, 13830, 15260, 16135, 19362, 22890, 27660, 32270, 38724, 45780, 48405, 50249, 64540, 96810, 100498, 150747, 193620, 200996, 251245, 301494, 351743, 502490, 602988, 703486, 753735, 1004980, 1055229, 1406972, 1507470, 1758715, 2110458, 3014940, 3517430, 4220916, 5276145, 7034860, 10552290, 21104580]

約数ペア:

[(1, 21104580), (2, 10552290), (3, 7034860), (4, 5276145), (5, 4220916), (6, 3517430), (7, 3014940), (10, 2110458), (12, 1758715), (14, 1507470), (15, 1406972), (20, 1055229), (21, 1004980), (28, 753735), (30, 703486), (35, 602988), (42, 502490), (60, 351743), (70, 301494), (84, 251245), (105, 200996), (109, 193620), (140, 150747), (210, 100498), (218, 96810), (327, 64540), (420, 50249), (436, 48405), (461, 45780), (545, 38724), (654, 32270), (763, 27660), (922, 22890), (1090, 19362), (1308, 16135), (1383, 15260), (1526, 13830), (1635, 12908), (1844, 11445), (2180, 9681), (2289, 9220), (2305, 9156), (2766, 7630), (3052, 6915), (3227, 6540), (3270, 6454), (3815, 5532), (4578, 4610)]