21546120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{439}}^1$

素因数の和:862

約数の個数: 64

約数和(自身を含む): 64944000

約数和(自身を除く): 43397880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 409, 439, 818, 878, 1227, 1317, 1636, 1756, 2045, 2195, 2454, 2634, 3272, 3512, 4090, 4390, 4908, 5268, 6135, 6585, 8180, 8780, 9816, 10536, 12270, 13170, 16360, 17560, 24540, 26340, 49080, 52680, 179551, 359102, 538653, 718204, 897755, 1077306, 1436408, 1795510, 2154612, 2693265, 3591020, 4309224, 5386530, 7182040, 10773060, 21546120]

約数ペア:

[(1, 21546120), (2, 10773060), (3, 7182040), (4, 5386530), (5, 4309224), (6, 3591020), (8, 2693265), (10, 2154612), (12, 1795510), (15, 1436408), (20, 1077306), (24, 897755), (30, 718204), (40, 538653), (60, 359102), (120, 179551), (409, 52680), (439, 49080), (818, 26340), (878, 24540), (1227, 17560), (1317, 16360), (1636, 13170), (1756, 12270), (2045, 10536), (2195, 9816), (2454, 8780), (2634, 8180), (3272, 6585), (3512, 6135), (4090, 5268), (4390, 4908)]