21386148

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{983}}^1$

素因数の和:1041

約数の個数: 72

約数和(自身を含む): 59677632

約数和(自身を除く): 38291484

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 49, 74, 84, 98, 111, 147, 148, 196, 222, 259, 294, 444, 518, 588, 777, 983, 1036, 1554, 1813, 1966, 2949, 3108, 3626, 3932, 5439, 5898, 6881, 7252, 10878, 11796, 13762, 20643, 21756, 27524, 36371, 41286, 48167, 72742, 82572, 96334, 109113, 144501, 145484, 192668, 218226, 254597, 289002, 436452, 509194, 578004, 763791, 1018388, 1527582, 1782179, 3055164, 3564358, 5346537, 7128716, 10693074, 21386148]

約数ペア:

[(1, 21386148), (2, 10693074), (3, 7128716), (4, 5346537), (6, 3564358), (7, 3055164), (12, 1782179), (14, 1527582), (21, 1018388), (28, 763791), (37, 578004), (42, 509194), (49, 436452), (74, 289002), (84, 254597), (98, 218226), (111, 192668), (147, 145484), (148, 144501), (196, 109113), (222, 96334), (259, 82572), (294, 72742), (444, 48167), (518, 41286), (588, 36371), (777, 27524), (983, 21756), (1036, 20643), (1554, 13762), (1813, 11796), (1966, 10878), (2949, 7252), (3108, 6881), (3626, 5898), (3932, 5439)]