21558702

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:345

約数の個数: 64

約数和(自身を含む): 49932288

約数和(自身を除く): 28373586

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 41, 62, 66, 82, 93, 123, 186, 246, 257, 341, 451, 514, 682, 771, 902, 1023, 1271, 1353, 1542, 2046, 2542, 2706, 2827, 3813, 5654, 7626, 7967, 8481, 10537, 13981, 15934, 16962, 21074, 23901, 27962, 31611, 41943, 47802, 63222, 83886, 87637, 115907, 175274, 231814, 262911, 326647, 347721, 525822, 653294, 695442, 979941, 1959882, 3593117, 7186234, 10779351, 21558702]

約数ペア:

[(1, 21558702), (2, 10779351), (3, 7186234), (6, 3593117), (11, 1959882), (22, 979941), (31, 695442), (33, 653294), (41, 525822), (62, 347721), (66, 326647), (82, 262911), (93, 231814), (123, 175274), (186, 115907), (246, 87637), (257, 83886), (341, 63222), (451, 47802), (514, 41943), (682, 31611), (771, 27962), (902, 23901), (1023, 21074), (1271, 16962), (1353, 15934), (1542, 13981), (2046, 10537), (2542, 8481), (2706, 7967), (2827, 7626), (3813, 5654)]