18948285

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 36781056

約数和(自身を除く): 17832771

約数列:

[1, 3, 5, 9, 15, 17, 31, 45, 47, 51, 85, 93, 141, 153, 155, 235, 255, 279, 289, 423, 465, 527, 705, 765, 799, 867, 1395, 1445, 1457, 1581, 2115, 2397, 2601, 2635, 3995, 4335, 4371, 4743, 7191, 7285, 7905, 8959, 11985, 13005, 13113, 13583, 21855, 23715, 24769, 26877, 35955, 40749, 44795, 65565, 67915, 74307, 80631, 122247, 123845, 134385, 203745, 222921, 371535, 403155, 421073, 611235, 1114605, 1263219, 2105365, 3789657, 6316095, 18948285]

約数ペア:

[(1, 18948285), (3, 6316095), (5, 3789657), (9, 2105365), (15, 1263219), (17, 1114605), (31, 611235), (45, 421073), (47, 403155), (51, 371535), (85, 222921), (93, 203745), (141, 134385), (153, 123845), (155, 122247), (235, 80631), (255, 74307), (279, 67915), (289, 65565), (423, 44795), (465, 40749), (527, 35955), (705, 26877), (765, 24769), (799, 23715), (867, 21855), (1395, 13583), (1445, 13113), (1457, 13005), (1581, 11985), (2115, 8959), (2397, 7905), (2601, 7285), (2635, 7191), (3995, 4743), (4335, 4371)]