21906430

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:234

約数の個数: 96

約数和(自身を含む): 52284960

約数和(自身を除く): 30378530

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 49, 65, 70, 91, 95, 98, 130, 133, 181, 182, 190, 245, 247, 266, 362, 455, 490, 494, 637, 665, 905, 910, 931, 1235, 1267, 1274, 1330, 1729, 1810, 1862, 2353, 2470, 2534, 3185, 3439, 3458, 4655, 4706, 6335, 6370, 6878, 8645, 8869, 9310, 11765, 12103, 12670, 16471, 17195, 17290, 17738, 23530, 24073, 24206, 32942, 34390, 44345, 44707, 48146, 60515, 82355, 88690, 89414, 115297, 120365, 121030, 164710, 168511, 223535, 230594, 240730, 312949, 337022, 447070, 576485, 625898, 842555, 1152970, 1564745, 1685110, 2190643, 3129490, 4381286, 10953215, 21906430]

約数ペア:

[(1, 21906430), (2, 10953215), (5, 4381286), (7, 3129490), (10, 2190643), (13, 1685110), (14, 1564745), (19, 1152970), (26, 842555), (35, 625898), (38, 576485), (49, 447070), (65, 337022), (70, 312949), (91, 240730), (95, 230594), (98, 223535), (130, 168511), (133, 164710), (181, 121030), (182, 120365), (190, 115297), (245, 89414), (247, 88690), (266, 82355), (362, 60515), (455, 48146), (490, 44707), (494, 44345), (637, 34390), (665, 32942), (905, 24206), (910, 24073), (931, 23530), (1235, 17738), (1267, 17290), (1274, 17195), (1330, 16471), (1729, 12670), (1810, 12103), (1862, 11765), (2353, 9310), (2470, 8869), (2534, 8645), (3185, 6878), (3439, 6370), (3458, 6335), (4655, 4706)]