21425208

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1747}}^1$

素因数の和:1836

約数の個数: 64

約数和(自身を含む): 62088960

約数和(自身を除く): 40663752

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 73, 84, 146, 168, 219, 292, 438, 511, 584, 876, 1022, 1533, 1747, 1752, 2044, 3066, 3494, 4088, 5241, 6132, 6988, 10482, 12229, 12264, 13976, 20964, 24458, 36687, 41928, 48916, 73374, 97832, 127531, 146748, 255062, 293496, 382593, 510124, 765186, 892717, 1020248, 1530372, 1785434, 2678151, 3060744, 3570868, 5356302, 7141736, 10712604, 21425208]

約数ペア:

[(1, 21425208), (2, 10712604), (3, 7141736), (4, 5356302), (6, 3570868), (7, 3060744), (8, 2678151), (12, 1785434), (14, 1530372), (21, 1020248), (24, 892717), (28, 765186), (42, 510124), (56, 382593), (73, 293496), (84, 255062), (146, 146748), (168, 127531), (219, 97832), (292, 73374), (438, 48916), (511, 41928), (584, 36687), (876, 24458), (1022, 20964), (1533, 13976), (1747, 12264), (1752, 12229), (2044, 10482), (3066, 6988), (3494, 6132), (4088, 5241)]