21477612

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^2$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 56351568

約数和(自身を除く): 34873956

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 52, 61, 74, 78, 111, 122, 148, 156, 183, 222, 244, 366, 444, 481, 732, 793, 962, 1443, 1586, 1924, 2257, 2379, 2886, 3172, 3721, 4514, 4758, 5772, 6771, 7442, 9028, 9516, 11163, 13542, 14884, 22326, 27084, 29341, 44652, 48373, 58682, 88023, 96746, 117364, 137677, 145119, 176046, 193492, 275354, 290238, 352092, 413031, 550708, 580476, 826062, 1652124, 1789801, 3579602, 5369403, 7159204, 10738806, 21477612]

約数ペア:

[(1, 21477612), (2, 10738806), (3, 7159204), (4, 5369403), (6, 3579602), (12, 1789801), (13, 1652124), (26, 826062), (37, 580476), (39, 550708), (52, 413031), (61, 352092), (74, 290238), (78, 275354), (111, 193492), (122, 176046), (148, 145119), (156, 137677), (183, 117364), (222, 96746), (244, 88023), (366, 58682), (444, 48373), (481, 44652), (732, 29341), (793, 27084), (962, 22326), (1443, 14884), (1586, 13542), (1924, 11163), (2257, 9516), (2379, 9028), (2886, 7442), (3172, 6771), (3721, 5772), (4514, 4758)]