221490009

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{773}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 360622080

約数和(自身を除く): 139132071

約数列:

[1, 3, 9, 13, 31, 39, 79, 93, 117, 237, 279, 403, 711, 773, 1027, 1209, 2319, 2449, 3081, 3627, 6957, 7347, 9243, 10049, 22041, 23963, 30147, 31837, 61067, 71889, 90441, 95511, 183201, 215667, 286533, 311519, 549603, 793871, 934557, 1893077, 2381613, 2803671, 5679231, 7144839, 17037693, 24610001, 73830003, 221490009]

約数ペア:

[(1, 221490009), (3, 73830003), (9, 24610001), (13, 17037693), (31, 7144839), (39, 5679231), (79, 2803671), (93, 2381613), (117, 1893077), (237, 934557), (279, 793871), (403, 549603), (711, 311519), (773, 286533), (1027, 215667), (1209, 183201), (2319, 95511), (2449, 90441), (3081, 71889), (3627, 61067), (6957, 31837), (7347, 30147), (9243, 23963), (10049, 22041)]