21196380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{541}}^1\times {\mathrm{653}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 59550624

約数和(自身を除く): 38354244

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 541, 653, 1082, 1306, 1623, 1959, 2164, 2612, 2705, 3246, 3265, 3918, 5410, 6492, 6530, 7836, 8115, 9795, 10820, 13060, 16230, 19590, 32460, 39180, 353273, 706546, 1059819, 1413092, 1766365, 2119638, 3532730, 4239276, 5299095, 7065460, 10598190, 21196380]

約数ペア:

[(1, 21196380), (2, 10598190), (3, 7065460), (4, 5299095), (5, 4239276), (6, 3532730), (10, 2119638), (12, 1766365), (15, 1413092), (20, 1059819), (30, 706546), (60, 353273), (541, 39180), (653, 32460), (1082, 19590), (1306, 16230), (1623, 13060), (1959, 10820), (2164, 9795), (2612, 8115), (2705, 7836), (3246, 6530), (3265, 6492), (3918, 5410)]