20185821117

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{52673}}^1$

素因数の和:52783

約数の個数: 72

約数和(自身を含む): 37470176640

約数和(自身を除く): 17284355523

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 79, 99, 147, 231, 237, 441, 539, 553, 693, 711, 869, 1617, 1659, 2607, 3871, 4851, 4977, 6083, 7821, 11613, 18249, 34839, 42581, 52673, 54747, 127743, 158019, 368711, 383229, 474057, 579403, 1106133, 1738209, 2580977, 3318399, 4055821, 4161167, 5214627, 7742931, 12167463, 12483501, 23228793, 28390747, 29128169, 36502389, 37450503, 45772837, 85172241, 87384507, 137318511, 203897183, 255516723, 262153521, 320409859, 411955533, 611691549, 961229577, 1835074647, 2242869013, 2883688731, 6728607039, 20185821117]

約数ペア:

[(1, 20185821117), (3, 6728607039), (7, 2883688731), (9, 2242869013), (11, 1835074647), (21, 961229577), (33, 611691549), (49, 411955533), (63, 320409859), (77, 262153521), (79, 255516723), (99, 203897183), (147, 137318511), (231, 87384507), (237, 85172241), (441, 45772837), (539, 37450503), (553, 36502389), (693, 29128169), (711, 28390747), (869, 23228793), (1617, 12483501), (1659, 12167463), (2607, 7742931), (3871, 5214627), (4851, 4161167), (4977, 4055821), (6083, 3318399), (7821, 2580977), (11613, 1738209), (18249, 1106133), (34839, 579403), (42581, 474057), (52673, 383229), (54747, 368711), (127743, 158019)]