21024180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{431}}^1$

素因数の和:717

約数の個数: 72

約数和(自身を含む): 64157184

約数和(自身を除く): 43133004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 271, 431, 542, 813, 862, 1084, 1293, 1355, 1626, 1724, 2155, 2439, 2586, 2710, 3252, 3879, 4065, 4310, 4878, 5172, 5420, 6465, 7758, 8130, 8620, 9756, 12195, 12930, 15516, 16260, 19395, 24390, 25860, 38790, 48780, 77580, 116801, 233602, 350403, 467204, 584005, 700806, 1051209, 1168010, 1401612, 1752015, 2102418, 2336020, 3504030, 4204836, 5256045, 7008060, 10512090, 21024180]

約数ペア:

[(1, 21024180), (2, 10512090), (3, 7008060), (4, 5256045), (5, 4204836), (6, 3504030), (9, 2336020), (10, 2102418), (12, 1752015), (15, 1401612), (18, 1168010), (20, 1051209), (30, 700806), (36, 584005), (45, 467204), (60, 350403), (90, 233602), (180, 116801), (271, 77580), (431, 48780), (542, 38790), (813, 25860), (862, 24390), (1084, 19395), (1293, 16260), (1355, 15516), (1626, 12930), (1724, 12195), (2155, 9756), (2439, 8620), (2586, 8130), (2710, 7758), (3252, 6465), (3879, 5420), (4065, 5172), (4310, 4878)]