19790901

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 32497920

約数和(自身を除く): 12707019

約数列:

[1, 3, 9, 13, 39, 47, 59, 61, 117, 141, 177, 183, 423, 531, 549, 611, 767, 793, 1833, 2301, 2379, 2773, 2867, 3599, 5499, 6903, 7137, 8319, 8601, 10797, 24957, 25803, 32391, 36049, 37271, 46787, 108147, 111813, 140361, 169153, 324441, 335439, 421083, 507459, 1522377, 2198989, 6596967, 19790901]

約数ペア:

[(1, 19790901), (3, 6596967), (9, 2198989), (13, 1522377), (39, 507459), (47, 421083), (59, 335439), (61, 324441), (117, 169153), (141, 140361), (177, 111813), (183, 108147), (423, 46787), (531, 37271), (549, 36049), (611, 32391), (767, 25803), (793, 24957), (1833, 10797), (2301, 8601), (2379, 8319), (2773, 7137), (2867, 6903), (3599, 5499)]