21215430

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:350

約数の個数: 96

約数和(自身を含む): 59327424

約数和(自身を除く): 38111994

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 37, 45, 46, 69, 74, 90, 111, 115, 138, 185, 207, 222, 230, 277, 333, 345, 370, 414, 554, 555, 666, 690, 831, 851, 1035, 1110, 1385, 1662, 1665, 1702, 2070, 2493, 2553, 2770, 3330, 4155, 4255, 4986, 5106, 6371, 7659, 8310, 8510, 10249, 12465, 12742, 12765, 15318, 19113, 20498, 24930, 25530, 30747, 31855, 38226, 38295, 51245, 57339, 61494, 63710, 76590, 92241, 95565, 102490, 114678, 153735, 184482, 191130, 235727, 286695, 307470, 461205, 471454, 573390, 707181, 922410, 1178635, 1414362, 2121543, 2357270, 3535905, 4243086, 7071810, 10607715, 21215430]

約数ペア:

[(1, 21215430), (2, 10607715), (3, 7071810), (5, 4243086), (6, 3535905), (9, 2357270), (10, 2121543), (15, 1414362), (18, 1178635), (23, 922410), (30, 707181), (37, 573390), (45, 471454), (46, 461205), (69, 307470), (74, 286695), (90, 235727), (111, 191130), (115, 184482), (138, 153735), (185, 114678), (207, 102490), (222, 95565), (230, 92241), (277, 76590), (333, 63710), (345, 61494), (370, 57339), (414, 51245), (554, 38295), (555, 38226), (666, 31855), (690, 30747), (831, 25530), (851, 24930), (1035, 20498), (1110, 19113), (1385, 15318), (1662, 12765), (1665, 12742), (1702, 12465), (2070, 10249), (2493, 8510), (2553, 8310), (2770, 7659), (3330, 6371), (4155, 5106), (4255, 4986)]