81219453

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 126316800

約数和(自身を除く): 45097347

約数列:

[1, 3, 7, 21, 101, 149, 257, 303, 447, 707, 771, 1043, 1799, 2121, 3129, 5397, 15049, 25957, 38293, 45147, 77871, 105343, 114879, 181699, 268051, 316029, 545097, 804153, 3867593, 11602779, 27073151, 81219453]

約数ペア:

[(1, 81219453), (3, 27073151), (7, 11602779), (21, 3867593), (101, 804153), (149, 545097), (257, 316029), (303, 268051), (447, 181699), (707, 114879), (771, 105343), (1043, 77871), (1799, 45147), (2121, 38293), (3129, 25957), (5397, 15049)]