19173825

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 38378496

約数和(自身を除く): 19204671

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 61, 75, 99, 127, 165, 183, 225, 275, 305, 381, 495, 549, 635, 671, 825, 915, 1143, 1397, 1525, 1905, 2013, 2475, 2745, 3175, 3355, 4191, 4575, 5715, 6039, 6985, 7747, 9525, 10065, 12573, 13725, 16775, 20955, 23241, 28575, 30195, 34925, 38735, 50325, 62865, 69723, 85217, 104775, 116205, 150975, 193675, 255651, 314325, 348615, 426085, 581025, 766953, 1278255, 1743075, 2130425, 3834765, 6391275, 19173825]

約数ペア:

[(1, 19173825), (3, 6391275), (5, 3834765), (9, 2130425), (11, 1743075), (15, 1278255), (25, 766953), (33, 581025), (45, 426085), (55, 348615), (61, 314325), (75, 255651), (99, 193675), (127, 150975), (165, 116205), (183, 104775), (225, 85217), (275, 69723), (305, 62865), (381, 50325), (495, 38735), (549, 34925), (635, 30195), (671, 28575), (825, 23241), (915, 20955), (1143, 16775), (1397, 13725), (1525, 12573), (1905, 10065), (2013, 9525), (2475, 7747), (2745, 6985), (3175, 6039), (3355, 5715), (4191, 4575)]