19215661491

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{139}}^1\times {\mathrm{937}}^1$

素因数の和:1205

約数の個数: 72

約数和(自身を含む): 30616207440

約数和(自身を除く): 11400545949

約数列:

[1, 3, 9, 13, 39, 97, 117, 139, 169, 291, 417, 507, 873, 937, 1251, 1261, 1521, 1807, 2811, 3783, 5421, 8433, 11349, 12181, 13483, 16263, 16393, 23491, 36543, 40449, 49179, 70473, 90889, 109629, 121347, 130243, 147537, 158353, 175279, 211419, 272667, 390729, 475059, 525837, 818001, 1172187, 1181557, 1425177, 1577511, 1693159, 2278627, 3544671, 5079477, 6835881, 10634013, 12633571, 15238431, 15360241, 20507643, 22011067, 37900713, 46080723, 66033201, 113702139, 138242169, 164236423, 198099603, 492709269, 1478127807, 2135073499, 6405220497, 19215661491]

約数ペア:

[(1, 19215661491), (3, 6405220497), (9, 2135073499), (13, 1478127807), (39, 492709269), (97, 198099603), (117, 164236423), (139, 138242169), (169, 113702139), (291, 66033201), (417, 46080723), (507, 37900713), (873, 22011067), (937, 20507643), (1251, 15360241), (1261, 15238431), (1521, 12633571), (1807, 10634013), (2811, 6835881), (3783, 5079477), (5421, 3544671), (8433, 2278627), (11349, 1693159), (12181, 1577511), (13483, 1425177), (16263, 1181557), (16393, 1172187), (23491, 818001), (36543, 525837), (40449, 475059), (49179, 390729), (70473, 272667), (90889, 211419), (109629, 175279), (121347, 158353), (130243, 147537)]