18436878

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:142

約数の個数: 96

約数和(自身を含む): 45527040

約数和(自身を除く): 27090162

約数列:

[1, 2, 3, 6, 9, 18, 19, 31, 37, 38, 47, 57, 62, 74, 93, 94, 111, 114, 141, 171, 186, 222, 279, 282, 333, 342, 423, 558, 589, 666, 703, 846, 893, 1147, 1178, 1406, 1457, 1739, 1767, 1786, 2109, 2294, 2679, 2914, 3441, 3478, 3534, 4218, 4371, 5217, 5301, 5358, 6327, 6882, 8037, 8742, 10323, 10434, 10602, 12654, 13113, 15651, 16074, 20646, 21793, 26226, 27683, 31302, 33041, 43586, 53909, 55366, 65379, 66082, 83049, 99123, 107818, 130758, 161727, 166098, 196137, 198246, 249147, 297369, 323454, 392274, 485181, 498294, 594738, 970362, 1024271, 2048542, 3072813, 6145626, 9218439, 18436878]

約数ペア:

[(1, 18436878), (2, 9218439), (3, 6145626), (6, 3072813), (9, 2048542), (18, 1024271), (19, 970362), (31, 594738), (37, 498294), (38, 485181), (47, 392274), (57, 323454), (62, 297369), (74, 249147), (93, 198246), (94, 196137), (111, 166098), (114, 161727), (141, 130758), (171, 107818), (186, 99123), (222, 83049), (279, 66082), (282, 65379), (333, 55366), (342, 53909), (423, 43586), (558, 33041), (589, 31302), (666, 27683), (703, 26226), (846, 21793), (893, 20646), (1147, 16074), (1178, 15651), (1406, 13113), (1457, 12654), (1739, 10602), (1767, 10434), (1786, 10323), (2109, 8742), (2294, 8037), (2679, 6882), (2914, 6327), (3441, 5358), (3478, 5301), (3534, 5217), (4218, 4371)]