21821348

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 20514652

約数列:

[1, 2, 4, 19, 38, 41, 47, 76, 82, 94, 149, 164, 188, 298, 596, 779, 893, 1558, 1786, 1927, 2831, 3116, 3572, 3854, 5662, 6109, 7003, 7708, 11324, 12218, 14006, 24436, 28012, 36613, 73226, 116071, 133057, 146452, 232142, 266114, 287123, 464284, 532228, 574246, 1148492, 5455337, 10910674, 21821348]

約数ペア:

[(1, 21821348), (2, 10910674), (4, 5455337), (19, 1148492), (38, 574246), (41, 532228), (47, 464284), (76, 287123), (82, 266114), (94, 232142), (149, 146452), (164, 133057), (188, 116071), (298, 73226), (596, 36613), (779, 28012), (893, 24436), (1558, 14006), (1786, 12218), (1927, 11324), (2831, 7708), (3116, 7003), (3572, 6109), (3854, 5662)]