21872812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 44241120

約数和(自身を除く): 22368308

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 109, 218, 221, 227, 436, 442, 454, 884, 908, 1417, 1853, 2834, 2951, 3706, 3859, 5668, 5902, 7412, 7718, 11804, 15436, 24089, 24743, 48178, 49486, 50167, 96356, 98972, 100334, 200668, 321659, 420631, 643318, 841262, 1286636, 1682524, 5468203, 10936406, 21872812]

約数ペア:

[(1, 21872812), (2, 10936406), (4, 5468203), (13, 1682524), (17, 1286636), (26, 841262), (34, 643318), (52, 420631), (68, 321659), (109, 200668), (218, 100334), (221, 98972), (227, 96356), (436, 50167), (442, 49486), (454, 48178), (884, 24743), (908, 24089), (1417, 15436), (1853, 11804), (2834, 7718), (2951, 7412), (3706, 5902), (3859, 5668)]