20210744645

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{251}}^1\times {\mathrm{13613}}^1$

素因数の和:13902

約数の個数: 48

約数和(自身を含む): 30135514752

約数和(自身を除く): 9924770107

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 251, 455, 845, 1183, 1255, 1757, 3263, 5915, 8785, 13613, 16315, 22841, 42419, 68065, 95291, 114205, 176969, 212095, 296933, 476455, 884845, 1238783, 1484665, 2300597, 3416863, 6193915, 11502985, 16104179, 17084315, 23918041, 44419219, 80520895, 119590205, 222096095, 310934533, 577449847, 1554672665, 2887249235, 4042148929, 20210744645]

約数ペア:

[(1, 20210744645), (5, 4042148929), (7, 2887249235), (13, 1554672665), (35, 577449847), (65, 310934533), (91, 222096095), (169, 119590205), (251, 80520895), (455, 44419219), (845, 23918041), (1183, 17084315), (1255, 16104179), (1757, 11502985), (3263, 6193915), (5915, 3416863), (8785, 2300597), (13613, 1484665), (16315, 1238783), (22841, 884845), (42419, 476455), (68065, 296933), (95291, 212095), (114205, 176969)]