21928788

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{503}}^1$

素因数の和:693

約数の個数: 72

約数和(自身を含む): 63842688

約数和(自身を除く): 41913900

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 173, 252, 346, 503, 519, 692, 1006, 1038, 1211, 1509, 1557, 2012, 2076, 2422, 3018, 3114, 3521, 3633, 4527, 4844, 6036, 6228, 7042, 7266, 9054, 10563, 10899, 14084, 14532, 18108, 21126, 21798, 31689, 42252, 43596, 63378, 87019, 126756, 174038, 261057, 348076, 522114, 609133, 783171, 1044228, 1218266, 1566342, 1827399, 2436532, 3132684, 3654798, 5482197, 7309596, 10964394, 21928788]

約数ペア:

[(1, 21928788), (2, 10964394), (3, 7309596), (4, 5482197), (6, 3654798), (7, 3132684), (9, 2436532), (12, 1827399), (14, 1566342), (18, 1218266), (21, 1044228), (28, 783171), (36, 609133), (42, 522114), (63, 348076), (84, 261057), (126, 174038), (173, 126756), (252, 87019), (346, 63378), (503, 43596), (519, 42252), (692, 31689), (1006, 21798), (1038, 21126), (1211, 18108), (1509, 14532), (1557, 14084), (2012, 10899), (2076, 10563), (2422, 9054), (3018, 7266), (3114, 7042), (3521, 6228), (3633, 6036), (4527, 4844)]