21899514

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2111}}^1$

素因数の和:2155

約数の個数: 64

約数和(自身を含む): 56770560

約数和(自身を除く): 34871046

約数列:

[1, 2, 3, 6, 7, 13, 14, 19, 21, 26, 38, 39, 42, 57, 78, 91, 114, 133, 182, 247, 266, 273, 399, 494, 546, 741, 798, 1482, 1729, 2111, 3458, 4222, 5187, 6333, 10374, 12666, 14777, 27443, 29554, 40109, 44331, 54886, 80218, 82329, 88662, 120327, 164658, 192101, 240654, 280763, 384202, 521417, 561526, 576303, 842289, 1042834, 1152606, 1564251, 1684578, 3128502, 3649919, 7299838, 10949757, 21899514]

約数ペア:

[(1, 21899514), (2, 10949757), (3, 7299838), (6, 3649919), (7, 3128502), (13, 1684578), (14, 1564251), (19, 1152606), (21, 1042834), (26, 842289), (38, 576303), (39, 561526), (42, 521417), (57, 384202), (78, 280763), (91, 240654), (114, 192101), (133, 164658), (182, 120327), (247, 88662), (266, 82329), (273, 80218), (399, 54886), (494, 44331), (546, 40109), (741, 29554), (798, 27443), (1482, 14777), (1729, 12666), (2111, 10374), (3458, 6333), (4222, 5187)]