21480210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7699}}^1$

素因数の和:7743

約数の個数: 48

約数和(自身を含む): 57657600

約数和(自身を除く): 36177390

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7699, 15398, 23097, 38495, 46194, 69291, 76990, 115485, 138582, 230970, 238669, 346455, 477338, 692910, 716007, 1193345, 1432014, 2148021, 2386690, 3580035, 4296042, 7160070, 10740105, 21480210]

約数ペア:

[(1, 21480210), (2, 10740105), (3, 7160070), (5, 4296042), (6, 3580035), (9, 2386690), (10, 2148021), (15, 1432014), (18, 1193345), (30, 716007), (31, 692910), (45, 477338), (62, 346455), (90, 238669), (93, 230970), (155, 138582), (186, 115485), (279, 76990), (310, 69291), (465, 46194), (558, 38495), (930, 23097), (1395, 15398), (2790, 7699)]