18990348

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:231

約数の個数: 96

約数和(自身を含む): 51744000

約数和(自身を除く): 32753652

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 43, 52, 57, 76, 78, 86, 114, 129, 149, 156, 172, 228, 247, 258, 298, 447, 494, 516, 559, 596, 741, 817, 894, 988, 1118, 1482, 1634, 1677, 1788, 1937, 2236, 2451, 2831, 2964, 3268, 3354, 3874, 4902, 5662, 5811, 6407, 6708, 7748, 8493, 9804, 10621, 11324, 11622, 12814, 16986, 19221, 21242, 23244, 25628, 31863, 33972, 36803, 38442, 42484, 63726, 73606, 76884, 83291, 110409, 121733, 127452, 147212, 166582, 220818, 243466, 249873, 333164, 365199, 441636, 486932, 499746, 730398, 999492, 1460796, 1582529, 3165058, 4747587, 6330116, 9495174, 18990348]

約数ペア:

[(1, 18990348), (2, 9495174), (3, 6330116), (4, 4747587), (6, 3165058), (12, 1582529), (13, 1460796), (19, 999492), (26, 730398), (38, 499746), (39, 486932), (43, 441636), (52, 365199), (57, 333164), (76, 249873), (78, 243466), (86, 220818), (114, 166582), (129, 147212), (149, 127452), (156, 121733), (172, 110409), (228, 83291), (247, 76884), (258, 73606), (298, 63726), (447, 42484), (494, 38442), (516, 36803), (559, 33972), (596, 31863), (741, 25628), (817, 23244), (894, 21242), (988, 19221), (1118, 16986), (1482, 12814), (1634, 11622), (1677, 11324), (1788, 10621), (1937, 9804), (2236, 8493), (2451, 7748), (2831, 6708), (2964, 6407), (3268, 5811), (3354, 5662), (3874, 4902)]