21249592

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{101}}^1$

素因数の和:161

約数の個数: 96

約数和(自身を含む): 52607520

約数和(自身を除く): 31357928

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 34, 52, 56, 68, 91, 101, 104, 119, 136, 182, 202, 221, 238, 289, 364, 404, 442, 476, 578, 707, 728, 808, 884, 952, 1156, 1313, 1414, 1547, 1717, 1768, 2023, 2312, 2626, 2828, 3094, 3434, 3757, 4046, 5252, 5656, 6188, 6868, 7514, 8092, 9191, 10504, 12019, 12376, 13736, 15028, 16184, 18382, 22321, 24038, 26299, 29189, 30056, 36764, 44642, 48076, 52598, 58378, 73528, 89284, 96152, 105196, 116756, 156247, 178568, 204323, 210392, 233512, 312494, 379457, 408646, 624988, 758914, 817292, 1249976, 1517828, 1634584, 2656199, 3035656, 5312398, 10624796, 21249592]

約数ペア:

[(1, 21249592), (2, 10624796), (4, 5312398), (7, 3035656), (8, 2656199), (13, 1634584), (14, 1517828), (17, 1249976), (26, 817292), (28, 758914), (34, 624988), (52, 408646), (56, 379457), (68, 312494), (91, 233512), (101, 210392), (104, 204323), (119, 178568), (136, 156247), (182, 116756), (202, 105196), (221, 96152), (238, 89284), (289, 73528), (364, 58378), (404, 52598), (442, 48076), (476, 44642), (578, 36764), (707, 30056), (728, 29189), (808, 26299), (884, 24038), (952, 22321), (1156, 18382), (1313, 16184), (1414, 15028), (1547, 13736), (1717, 12376), (1768, 12019), (2023, 10504), (2312, 9191), (2626, 8092), (2828, 7514), (3094, 6868), (3434, 6188), (3757, 5656), (4046, 5252)]