21649572

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{4091}}^1$

素因数の和:4118

約数の個数: 72

約数和(自身を含む): 65308320

約数和(自身を除く): 43658748

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 4091, 5292, 8182, 12273, 16364, 24546, 28637, 36819, 49092, 57274, 73638, 85911, 110457, 114548, 147276, 171822, 200459, 220914, 257733, 343644, 400918, 441828, 515466, 601377, 773199, 801836, 1030932, 1202754, 1546398, 1804131, 2405508, 3092796, 3608262, 5412393, 7216524, 10824786, 21649572]

約数ペア:

[(1, 21649572), (2, 10824786), (3, 7216524), (4, 5412393), (6, 3608262), (7, 3092796), (9, 2405508), (12, 1804131), (14, 1546398), (18, 1202754), (21, 1030932), (27, 801836), (28, 773199), (36, 601377), (42, 515466), (49, 441828), (54, 400918), (63, 343644), (84, 257733), (98, 220914), (108, 200459), (126, 171822), (147, 147276), (189, 114548), (196, 110457), (252, 85911), (294, 73638), (378, 57274), (441, 49092), (588, 36819), (756, 28637), (882, 24546), (1323, 16364), (1764, 12273), (2646, 8182), (4091, 5292)]