21179224

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 25476776

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 53, 76, 88, 106, 152, 209, 212, 239, 418, 424, 478, 583, 836, 956, 1007, 1166, 1672, 1912, 2014, 2332, 2629, 4028, 4541, 4664, 5258, 8056, 9082, 10516, 11077, 12667, 18164, 21032, 22154, 25334, 36328, 44308, 49951, 50668, 88616, 99902, 101336, 139337, 199804, 240673, 278674, 399608, 481346, 557348, 962692, 1114696, 1925384, 2647403, 5294806, 10589612, 21179224]

約数ペア:

[(1, 21179224), (2, 10589612), (4, 5294806), (8, 2647403), (11, 1925384), (19, 1114696), (22, 962692), (38, 557348), (44, 481346), (53, 399608), (76, 278674), (88, 240673), (106, 199804), (152, 139337), (209, 101336), (212, 99902), (239, 88616), (418, 50668), (424, 49951), (478, 44308), (583, 36328), (836, 25334), (956, 22154), (1007, 21032), (1166, 18164), (1672, 12667), (1912, 11077), (2014, 10516), (2332, 9082), (2629, 8056), (4028, 5258), (4541, 4664)]