21871122

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{977}}^1$

素因数の和:1043

約数の個数: 64

約数和(自身を含む): 55206144

約数和(自身を除く): 33335022

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 41, 42, 78, 82, 91, 123, 182, 246, 273, 287, 533, 546, 574, 861, 977, 1066, 1599, 1722, 1954, 2931, 3198, 3731, 5862, 6839, 7462, 11193, 12701, 13678, 20517, 22386, 25402, 38103, 40057, 41034, 76206, 80114, 88907, 120171, 177814, 240342, 266721, 280399, 520741, 533442, 560798, 841197, 1041482, 1562223, 1682394, 3124446, 3645187, 7290374, 10935561, 21871122]

約数ペア:

[(1, 21871122), (2, 10935561), (3, 7290374), (6, 3645187), (7, 3124446), (13, 1682394), (14, 1562223), (21, 1041482), (26, 841197), (39, 560798), (41, 533442), (42, 520741), (78, 280399), (82, 266721), (91, 240342), (123, 177814), (182, 120171), (246, 88907), (273, 80114), (287, 76206), (533, 41034), (546, 40057), (574, 38103), (861, 25402), (977, 22386), (1066, 20517), (1599, 13678), (1722, 12701), (1954, 11193), (2931, 7462), (3198, 6839), (3731, 5862)]