21597360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89989}}^1$

素因数の和:90005

約数の個数: 40

約数和(自身を含む): 66952560

約数和(自身を除く): 45355200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89989, 179978, 269967, 359956, 449945, 539934, 719912, 899890, 1079868, 1349835, 1439824, 1799780, 2159736, 2699670, 3599560, 4319472, 5399340, 7199120, 10798680, 21597360]

約数ペア:

[(1, 21597360), (2, 10798680), (3, 7199120), (4, 5399340), (5, 4319472), (6, 3599560), (8, 2699670), (10, 2159736), (12, 1799780), (15, 1439824), (16, 1349835), (20, 1079868), (24, 899890), (30, 719912), (40, 539934), (48, 449945), (60, 359956), (80, 269967), (120, 179978), (240, 89989)]