21193290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1301}}^1$

素因数の和:1495

約数の個数: 48

約数和(自身を含む): 55449576

約数和(自身を除く): 34256286

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 181, 362, 543, 905, 1086, 1301, 1629, 1810, 2602, 2715, 3258, 3903, 5430, 6505, 7806, 8145, 11709, 13010, 16290, 19515, 23418, 39030, 58545, 117090, 235481, 470962, 706443, 1177405, 1412886, 2119329, 2354810, 3532215, 4238658, 7064430, 10596645, 21193290]

約数ペア:

[(1, 21193290), (2, 10596645), (3, 7064430), (5, 4238658), (6, 3532215), (9, 2354810), (10, 2119329), (15, 1412886), (18, 1177405), (30, 706443), (45, 470962), (90, 235481), (181, 117090), (362, 58545), (543, 39030), (905, 23418), (1086, 19515), (1301, 16290), (1629, 13010), (1810, 11709), (2602, 8145), (2715, 7806), (3258, 6505), (3903, 5430)]