20921070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:357

約数の個数: 64

約数和(自身を含む): 52363584

約数和(自身を除く): 31442514

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 73, 82, 123, 146, 205, 219, 233, 246, 365, 410, 438, 466, 615, 699, 730, 1095, 1165, 1230, 1398, 2190, 2330, 2993, 3495, 5986, 6990, 8979, 9553, 14965, 17009, 17958, 19106, 28659, 29930, 34018, 44895, 47765, 51027, 57318, 85045, 89790, 95530, 102054, 143295, 170090, 255135, 286590, 510270, 697369, 1394738, 2092107, 3486845, 4184214, 6973690, 10460535, 20921070]

約数ペア:

[(1, 20921070), (2, 10460535), (3, 6973690), (5, 4184214), (6, 3486845), (10, 2092107), (15, 1394738), (30, 697369), (41, 510270), (73, 286590), (82, 255135), (123, 170090), (146, 143295), (205, 102054), (219, 95530), (233, 89790), (246, 85045), (365, 57318), (410, 51027), (438, 47765), (466, 44895), (615, 34018), (699, 29930), (730, 28659), (1095, 19106), (1165, 17958), (1230, 17009), (1398, 14965), (2190, 9553), (2330, 8979), (2993, 6990), (3495, 5986)]