20638476

素因数分解:

$2^2\times 3^5\times {\mathrm{17}}^1\times {\mathrm{1249}}^1$

素因数の和:1285

約数の個数: 72

約数和(自身を含む): 57330000

約数和(自身を除く): 36691524

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 81, 102, 108, 153, 162, 204, 243, 306, 324, 459, 486, 612, 918, 972, 1249, 1377, 1836, 2498, 2754, 3747, 4131, 4996, 5508, 7494, 8262, 11241, 14988, 16524, 21233, 22482, 33723, 42466, 44964, 63699, 67446, 84932, 101169, 127398, 134892, 191097, 202338, 254796, 303507, 382194, 404676, 573291, 607014, 764388, 1146582, 1214028, 1719873, 2293164, 3439746, 5159619, 6879492, 10319238, 20638476]

約数ペア:

[(1, 20638476), (2, 10319238), (3, 6879492), (4, 5159619), (6, 3439746), (9, 2293164), (12, 1719873), (17, 1214028), (18, 1146582), (27, 764388), (34, 607014), (36, 573291), (51, 404676), (54, 382194), (68, 303507), (81, 254796), (102, 202338), (108, 191097), (153, 134892), (162, 127398), (204, 101169), (243, 84932), (306, 67446), (324, 63699), (459, 44964), (486, 42466), (612, 33723), (918, 22482), (972, 21233), (1249, 16524), (1377, 14988), (1836, 11241), (2498, 8262), (2754, 7494), (3747, 5508), (4131, 4996)]