21535436

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 43464960

約数和(自身を除く): 21929524

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 71, 76, 142, 247, 284, 307, 494, 614, 923, 988, 1228, 1349, 1846, 2698, 3692, 3991, 5396, 5833, 7982, 11666, 15964, 17537, 21797, 23332, 35074, 43594, 70148, 75829, 87188, 151658, 283361, 303316, 414143, 566722, 828286, 1133444, 1656572, 5383859, 10767718, 21535436]

約数ペア:

[(1, 21535436), (2, 10767718), (4, 5383859), (13, 1656572), (19, 1133444), (26, 828286), (38, 566722), (52, 414143), (71, 303316), (76, 283361), (142, 151658), (247, 87188), (284, 75829), (307, 70148), (494, 43594), (614, 35074), (923, 23332), (988, 21797), (1228, 17537), (1349, 15964), (1846, 11666), (2698, 7982), (3692, 5833), (3991, 5396)]