18438284

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 35750400

約数和(自身を除く): 17312116

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 79, 83, 148, 158, 166, 316, 332, 703, 1406, 1501, 1577, 2812, 2923, 3002, 3071, 3154, 5846, 6004, 6142, 6308, 6557, 11692, 12284, 13114, 26228, 55537, 58349, 111074, 116698, 124583, 222148, 233396, 242609, 249166, 485218, 498332, 970436, 4609571, 9219142, 18438284]

約数ペア:

[(1, 18438284), (2, 9219142), (4, 4609571), (19, 970436), (37, 498332), (38, 485218), (74, 249166), (76, 242609), (79, 233396), (83, 222148), (148, 124583), (158, 116698), (166, 111074), (316, 58349), (332, 55537), (703, 26228), (1406, 13114), (1501, 12284), (1577, 11692), (2812, 6557), (2923, 6308), (3002, 6142), (3071, 6004), (3154, 5846)]