27971895

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2003}}^1$

素因数の和:2044

約数の個数: 48

約数和(自身を含む): 54829440

約数和(自身を除く): 26857545

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1995, 2003, 2793, 4655, 6009, 10015, 13965, 14021, 30045, 38057, 42063, 70105, 98147, 114171, 190285, 210315, 266399, 294441, 490735, 570855, 799197, 1331995, 1472205, 1864793, 3995985, 5594379, 9323965, 27971895]

約数ペア:

[(1, 27971895), (3, 9323965), (5, 5594379), (7, 3995985), (15, 1864793), (19, 1472205), (21, 1331995), (35, 799197), (49, 570855), (57, 490735), (95, 294441), (105, 266399), (133, 210315), (147, 190285), (245, 114171), (285, 98147), (399, 70105), (665, 42063), (735, 38057), (931, 30045), (1995, 14021), (2003, 13965), (2793, 10015), (4655, 6009)]