21666360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2543}}^1$

素因数の和:2628

約数の個数: 64

約数和(自身を含む): 65940480

約数和(自身を除く): 44274120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2543, 2840, 4260, 5086, 7629, 8520, 10172, 12715, 15258, 20344, 25430, 30516, 38145, 50860, 61032, 76290, 101720, 152580, 180553, 305160, 361106, 541659, 722212, 902765, 1083318, 1444424, 1805530, 2166636, 2708295, 3611060, 4333272, 5416590, 7222120, 10833180, 21666360]

約数ペア:

[(1, 21666360), (2, 10833180), (3, 7222120), (4, 5416590), (5, 4333272), (6, 3611060), (8, 2708295), (10, 2166636), (12, 1805530), (15, 1444424), (20, 1083318), (24, 902765), (30, 722212), (40, 541659), (60, 361106), (71, 305160), (120, 180553), (142, 152580), (213, 101720), (284, 76290), (355, 61032), (426, 50860), (568, 38145), (710, 30516), (852, 25430), (1065, 20344), (1420, 15258), (1704, 12715), (2130, 10172), (2543, 8520), (2840, 7629), (4260, 5086)]