20705427873

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{487}}^1\times {\mathrm{1361}}^1$

素因数の和:1959

約数の個数: 64

約数和(自身を含む): 33498662400

約数和(自身を除く): 12793234527

約数列:

[1, 3, 9, 13, 27, 39, 89, 117, 267, 351, 487, 801, 1157, 1361, 1461, 2403, 3471, 4083, 4383, 6331, 10413, 12249, 13149, 17693, 18993, 31239, 36747, 43343, 53079, 56979, 121129, 130029, 159237, 170937, 363387, 390087, 477711, 563459, 662807, 1090161, 1170261, 1574677, 1690377, 1988421, 3270483, 4724031, 5071131, 5965263, 8616491, 14172093, 15213393, 17895789, 25849473, 42516279, 58989823, 77548419, 176969469, 232645257, 530908407, 766867699, 1592725221, 2300603097, 6901809291, 20705427873]

約数ペア:

[(1, 20705427873), (3, 6901809291), (9, 2300603097), (13, 1592725221), (27, 766867699), (39, 530908407), (89, 232645257), (117, 176969469), (267, 77548419), (351, 58989823), (487, 42516279), (801, 25849473), (1157, 17895789), (1361, 15213393), (1461, 14172093), (2403, 8616491), (3471, 5965263), (4083, 5071131), (4383, 4724031), (6331, 3270483), (10413, 1988421), (12249, 1690377), (13149, 1574677), (17693, 1170261), (18993, 1090161), (31239, 662807), (36747, 563459), (43343, 477711), (53079, 390087), (56979, 363387), (121129, 170937), (130029, 159237)]