21530988

素因数分解:

$2^2\times 3^3\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 96

約数和(自身を含む): 59136000

約数和(自身を除く): 37605012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 59, 62, 93, 108, 109, 118, 124, 177, 186, 218, 236, 279, 327, 354, 372, 436, 531, 558, 654, 708, 837, 981, 1062, 1116, 1308, 1593, 1674, 1829, 1962, 2124, 2943, 3186, 3348, 3379, 3658, 3924, 5487, 5886, 6372, 6431, 6758, 7316, 10137, 10974, 11772, 12862, 13516, 16461, 19293, 20274, 21948, 25724, 30411, 32922, 38586, 40548, 49383, 57879, 60822, 65844, 77172, 91233, 98766, 115758, 121644, 173637, 182466, 197532, 199361, 231516, 347274, 364932, 398722, 598083, 694548, 797444, 1196166, 1794249, 2392332, 3588498, 5382747, 7176996, 10765494, 21530988]

約数ペア:

[(1, 21530988), (2, 10765494), (3, 7176996), (4, 5382747), (6, 3588498), (9, 2392332), (12, 1794249), (18, 1196166), (27, 797444), (31, 694548), (36, 598083), (54, 398722), (59, 364932), (62, 347274), (93, 231516), (108, 199361), (109, 197532), (118, 182466), (124, 173637), (177, 121644), (186, 115758), (218, 98766), (236, 91233), (279, 77172), (327, 65844), (354, 60822), (372, 57879), (436, 49383), (531, 40548), (558, 38586), (654, 32922), (708, 30411), (837, 25724), (981, 21948), (1062, 20274), (1116, 19293), (1308, 16461), (1593, 13516), (1674, 12862), (1829, 11772), (1962, 10974), (2124, 10137), (2943, 7316), (3186, 6758), (3348, 6431), (3379, 6372), (3658, 5886), (3924, 5487)]