213953460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{509413}}^1$

素因数の和:509432

約数の個数: 48

約数和(自身を含む): 684652416

約数和(自身を除く): 470698956

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 509413, 1018826, 1528239, 2037652, 2547065, 3056478, 3565891, 5094130, 6112956, 7131782, 7641195, 10188260, 10697673, 14263564, 15282390, 17829455, 21395346, 30564780, 35658910, 42790692, 53488365, 71317820, 106976730, 213953460]

約数ペア:

[(1, 213953460), (2, 106976730), (3, 71317820), (4, 53488365), (5, 42790692), (6, 35658910), (7, 30564780), (10, 21395346), (12, 17829455), (14, 15282390), (15, 14263564), (20, 10697673), (21, 10188260), (28, 7641195), (30, 7131782), (35, 6112956), (42, 5094130), (60, 3565891), (70, 3056478), (84, 2547065), (105, 2037652), (140, 1528239), (210, 1018826), (420, 509413)]