21981652

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 30273068

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 29, 44, 46, 58, 77, 92, 107, 116, 154, 161, 203, 214, 253, 308, 319, 322, 406, 428, 506, 638, 644, 667, 749, 812, 1012, 1177, 1276, 1334, 1498, 1771, 2233, 2354, 2461, 2668, 2996, 3103, 3542, 4466, 4669, 4708, 4922, 6206, 7084, 7337, 8239, 8932, 9338, 9844, 12412, 14674, 16478, 17227, 18676, 21721, 27071, 29348, 32956, 34133, 34454, 43442, 51359, 54142, 68266, 68908, 71369, 86884, 102718, 108284, 136532, 142738, 189497, 205436, 238931, 285476, 378994, 477862, 499583, 757988, 785059, 955724, 999166, 1570118, 1998332, 3140236, 5495413, 10990826, 21981652]

約数ペア:

[(1, 21981652), (2, 10990826), (4, 5495413), (7, 3140236), (11, 1998332), (14, 1570118), (22, 999166), (23, 955724), (28, 785059), (29, 757988), (44, 499583), (46, 477862), (58, 378994), (77, 285476), (92, 238931), (107, 205436), (116, 189497), (154, 142738), (161, 136532), (203, 108284), (214, 102718), (253, 86884), (308, 71369), (319, 68908), (322, 68266), (406, 54142), (428, 51359), (506, 43442), (638, 34454), (644, 34133), (667, 32956), (749, 29348), (812, 27071), (1012, 21721), (1177, 18676), (1276, 17227), (1334, 16478), (1498, 14674), (1771, 12412), (2233, 9844), (2354, 9338), (2461, 8932), (2668, 8239), (2996, 7337), (3103, 7084), (3542, 6206), (4466, 4922), (4669, 4708)]