21384020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:297

約数の個数: 96

約数和(自身を含む): 55641600

約数和(自身を除く): 34257580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 29, 35, 46, 58, 70, 92, 115, 116, 140, 145, 161, 203, 229, 230, 290, 322, 406, 458, 460, 580, 644, 667, 805, 812, 916, 1015, 1145, 1334, 1603, 1610, 2030, 2290, 2668, 3206, 3220, 3335, 4060, 4580, 4669, 5267, 6412, 6641, 6670, 8015, 9338, 10534, 13282, 13340, 16030, 18676, 21068, 23345, 26335, 26564, 32060, 33205, 36869, 46487, 46690, 52670, 66410, 73738, 92974, 93380, 105340, 132820, 147476, 152743, 184345, 185948, 232435, 305486, 368690, 464870, 610972, 737380, 763715, 929740, 1069201, 1527430, 2138402, 3054860, 4276804, 5346005, 10692010, 21384020]

約数ペア:

[(1, 21384020), (2, 10692010), (4, 5346005), (5, 4276804), (7, 3054860), (10, 2138402), (14, 1527430), (20, 1069201), (23, 929740), (28, 763715), (29, 737380), (35, 610972), (46, 464870), (58, 368690), (70, 305486), (92, 232435), (115, 185948), (116, 184345), (140, 152743), (145, 147476), (161, 132820), (203, 105340), (229, 93380), (230, 92974), (290, 73738), (322, 66410), (406, 52670), (458, 46690), (460, 46487), (580, 36869), (644, 33205), (667, 32060), (805, 26564), (812, 26335), (916, 23345), (1015, 21068), (1145, 18676), (1334, 16030), (1603, 13340), (1610, 13282), (2030, 10534), (2290, 9338), (2668, 8015), (3206, 6670), (3220, 6641), (3335, 6412), (4060, 5267), (4580, 4669)]