21357064

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 45360000

約数和(自身を除く): 24002936

約数列:

[1, 2, 4, 8, 19, 23, 38, 41, 46, 76, 82, 92, 149, 152, 164, 184, 298, 328, 437, 596, 779, 874, 943, 1192, 1558, 1748, 1886, 2831, 3116, 3427, 3496, 3772, 5662, 6109, 6232, 6854, 7544, 11324, 12218, 13708, 17917, 22648, 24436, 27416, 35834, 48872, 65113, 71668, 116071, 130226, 140507, 143336, 232142, 260452, 281014, 464284, 520904, 562028, 928568, 1124056, 2669633, 5339266, 10678532, 21357064]

約数ペア:

[(1, 21357064), (2, 10678532), (4, 5339266), (8, 2669633), (19, 1124056), (23, 928568), (38, 562028), (41, 520904), (46, 464284), (76, 281014), (82, 260452), (92, 232142), (149, 143336), (152, 140507), (164, 130226), (184, 116071), (298, 71668), (328, 65113), (437, 48872), (596, 35834), (779, 27416), (874, 24436), (943, 22648), (1192, 17917), (1558, 13708), (1748, 12218), (1886, 11324), (2831, 7544), (3116, 6854), (3427, 6232), (3496, 6109), (3772, 5662)]