18880131

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 27417600

約数和(自身を除く): 8537469

約数列:

[1, 3, 29, 41, 67, 79, 87, 123, 201, 237, 1189, 1943, 2291, 2747, 3239, 3567, 5293, 5829, 6873, 8241, 9717, 15879, 79663, 93931, 153497, 217013, 238989, 281793, 460491, 651039, 6293377, 18880131]

約数ペア:

[(1, 18880131), (3, 6293377), (29, 651039), (41, 460491), (67, 281793), (79, 238989), (87, 217013), (123, 153497), (201, 93931), (237, 79663), (1189, 15879), (1943, 9717), (2291, 8241), (2747, 6873), (3239, 5829), (3567, 5293)]