25198551

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 43330560

約数和(自身を除く): 18132009

約数列:

[1, 3, 7, 9, 21, 61, 63, 79, 83, 183, 237, 249, 427, 549, 553, 581, 711, 747, 1281, 1659, 1743, 3843, 4819, 4977, 5063, 5229, 6557, 14457, 15189, 19671, 33733, 35441, 43371, 45567, 45899, 59013, 101199, 106323, 137697, 303597, 318969, 399977, 413091, 1199931, 2799839, 3599793, 8399517, 25198551]

約数ペア:

[(1, 25198551), (3, 8399517), (7, 3599793), (9, 2799839), (21, 1199931), (61, 413091), (63, 399977), (79, 318969), (83, 303597), (183, 137697), (237, 106323), (249, 101199), (427, 59013), (549, 45899), (553, 45567), (581, 43371), (711, 35441), (747, 33733), (1281, 19671), (1659, 15189), (1743, 14457), (3843, 6557), (4819, 5229), (4977, 5063)]