21890190

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{104239}}^1$

素因数の和:104256

約数の個数: 32

約数和(自身を含む): 60042240

約数和(自身を除く): 38152050

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 104239, 208478, 312717, 521195, 625434, 729673, 1042390, 1459346, 1563585, 2189019, 3127170, 3648365, 4378038, 7296730, 10945095, 21890190]

約数ペア:

[(1, 21890190), (2, 10945095), (3, 7296730), (5, 4378038), (6, 3648365), (7, 3127170), (10, 2189019), (14, 1563585), (15, 1459346), (21, 1042390), (30, 729673), (35, 625434), (42, 521195), (70, 312717), (105, 208478), (210, 104239)]