21671160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{25799}}^1$

素因数の和:25820

約数の個数: 64

約数和(自身を含む): 74304000

約数和(自身を除く): 52632840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 25799, 51598, 77397, 103196, 128995, 154794, 180593, 206392, 257990, 309588, 361186, 386985, 515980, 541779, 619176, 722372, 773970, 902965, 1031960, 1083558, 1444744, 1547940, 1805930, 2167116, 2708895, 3095880, 3611860, 4334232, 5417790, 7223720, 10835580, 21671160]

約数ペア:

[(1, 21671160), (2, 10835580), (3, 7223720), (4, 5417790), (5, 4334232), (6, 3611860), (7, 3095880), (8, 2708895), (10, 2167116), (12, 1805930), (14, 1547940), (15, 1444744), (20, 1083558), (21, 1031960), (24, 902965), (28, 773970), (30, 722372), (35, 619176), (40, 541779), (42, 515980), (56, 386985), (60, 361186), (70, 309588), (84, 257990), (105, 206392), (120, 180593), (140, 154794), (168, 128995), (210, 103196), (280, 77397), (420, 51598), (840, 25799)]