21866325

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{547}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 39955776

約数和(自身を除く): 18089451

約数列:

[1, 3, 5, 13, 15, 25, 39, 41, 65, 75, 123, 195, 205, 325, 533, 547, 615, 975, 1025, 1599, 1641, 2665, 2735, 3075, 7111, 7995, 8205, 13325, 13675, 21333, 22427, 35555, 39975, 41025, 67281, 106665, 112135, 177775, 291551, 336405, 533325, 560675, 874653, 1457755, 1682025, 4373265, 7288775, 21866325]

約数ペア:

[(1, 21866325), (3, 7288775), (5, 4373265), (13, 1682025), (15, 1457755), (25, 874653), (39, 560675), (41, 533325), (65, 336405), (75, 291551), (123, 177775), (195, 112135), (205, 106665), (325, 67281), (533, 41025), (547, 39975), (615, 35555), (975, 22427), (1025, 21333), (1599, 13675), (1641, 13325), (2665, 8205), (2735, 7995), (3075, 7111)]