21024780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{443}}^1$

素因数の和:575

約数の個数: 96

約数和(自身を含む): 68027904

約数和(自身を除く): 47003124

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 113, 140, 210, 226, 339, 420, 443, 452, 565, 678, 791, 886, 1130, 1329, 1356, 1582, 1695, 1772, 2215, 2260, 2373, 2658, 3101, 3164, 3390, 3955, 4430, 4746, 5316, 6202, 6645, 6780, 7910, 8860, 9303, 9492, 11865, 12404, 13290, 15505, 15820, 18606, 23730, 26580, 31010, 37212, 46515, 47460, 50059, 62020, 93030, 100118, 150177, 186060, 200236, 250295, 300354, 350413, 500590, 600708, 700826, 750885, 1001180, 1051239, 1401652, 1501770, 1752065, 2102478, 3003540, 3504130, 4204956, 5256195, 7008260, 10512390, 21024780]

約数ペア:

[(1, 21024780), (2, 10512390), (3, 7008260), (4, 5256195), (5, 4204956), (6, 3504130), (7, 3003540), (10, 2102478), (12, 1752065), (14, 1501770), (15, 1401652), (20, 1051239), (21, 1001180), (28, 750885), (30, 700826), (35, 600708), (42, 500590), (60, 350413), (70, 300354), (84, 250295), (105, 200236), (113, 186060), (140, 150177), (210, 100118), (226, 93030), (339, 62020), (420, 50059), (443, 47460), (452, 46515), (565, 37212), (678, 31010), (791, 26580), (886, 23730), (1130, 18606), (1329, 15820), (1356, 15505), (1582, 13290), (1695, 12404), (1772, 11865), (2215, 9492), (2260, 9303), (2373, 8860), (2658, 7910), (3101, 6780), (3164, 6645), (3390, 6202), (3955, 5316), (4430, 4746)]