21000908040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3571583}}^1$

素因数の和:3571611

約数の個数: 96

約数和(自身を含む): 73288903680

約数和(自身を除く): 52287995640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 5880, 3571583, 7143166, 10714749, 14286332, 17857915, 21429498, 25001081, 28572664, 35715830, 42858996, 50002162, 53573745, 71431660, 75003243, 85717992, 100004324, 107147490, 125005405, 142863320, 150006486, 175007567, 200008648, 214294980, 250010810, 300012972, 350015134, 375016215, 428589960, 500021620, 525022701, 600025944, 700030268, 750032430, 875037835, 1000043240, 1050045402, 1400060536, 1500064860, 1750075670, 2100090804, 2625113505, 3000129720, 3500151340, 4200181608, 5250227010, 7000302680, 10500454020, 21000908040]

約数ペア:

[(1, 21000908040), (2, 10500454020), (3, 7000302680), (4, 5250227010), (5, 4200181608), (6, 3500151340), (7, 3000129720), (8, 2625113505), (10, 2100090804), (12, 1750075670), (14, 1500064860), (15, 1400060536), (20, 1050045402), (21, 1000043240), (24, 875037835), (28, 750032430), (30, 700030268), (35, 600025944), (40, 525022701), (42, 500021620), (49, 428589960), (56, 375016215), (60, 350015134), (70, 300012972), (84, 250010810), (98, 214294980), (105, 200008648), (120, 175007567), (140, 150006486), (147, 142863320), (168, 125005405), (196, 107147490), (210, 100004324), (245, 85717992), (280, 75003243), (294, 71431660), (392, 53573745), (420, 50002162), (490, 42858996), (588, 35715830), (735, 28572664), (840, 25001081), (980, 21429498), (1176, 17857915), (1470, 14286332), (1960, 10714749), (2940, 7143166), (5880, 3571583)]