21321690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2377}}^1$

素因数の和:2423

約数の個数: 64

約数和(自身を含む): 57528576

約数和(自身を除く): 36206886

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 598, 690, 897, 1495, 1794, 2377, 2990, 4485, 4754, 7131, 8970, 11885, 14262, 23770, 30901, 35655, 54671, 61802, 71310, 92703, 109342, 154505, 164013, 185406, 273355, 309010, 328026, 463515, 546710, 710723, 820065, 927030, 1421446, 1640130, 2132169, 3553615, 4264338, 7107230, 10660845, 21321690]

約数ペア:

[(1, 21321690), (2, 10660845), (3, 7107230), (5, 4264338), (6, 3553615), (10, 2132169), (13, 1640130), (15, 1421446), (23, 927030), (26, 820065), (30, 710723), (39, 546710), (46, 463515), (65, 328026), (69, 309010), (78, 273355), (115, 185406), (130, 164013), (138, 154505), (195, 109342), (230, 92703), (299, 71310), (345, 61802), (390, 54671), (598, 35655), (690, 30901), (897, 23770), (1495, 14262), (1794, 11885), (2377, 8970), (2990, 7131), (4485, 4754)]