20147987517

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1\times {\mathrm{433}}^1$

素因数の和:882

約数の個数: 64

約数和(自身を含む): 31571312640

約数和(自身を除く): 11423325123

約数列:

[1, 3, 7, 21, 73, 127, 219, 239, 381, 433, 511, 717, 889, 1299, 1533, 1673, 2667, 3031, 5019, 9093, 9271, 17447, 27813, 30353, 31609, 52341, 54991, 64897, 91059, 94827, 103487, 122129, 164973, 194691, 212471, 221263, 310461, 366387, 384937, 637413, 663789, 724409, 1154811, 2173227, 2215769, 4014343, 6647307, 7554551, 12043029, 13142849, 15510383, 22663653, 28100401, 39428547, 46531149, 52881857, 84301203, 91999943, 158645571, 275999829, 959427977, 2878283931, 6715995839, 20147987517]

約数ペア:

[(1, 20147987517), (3, 6715995839), (7, 2878283931), (21, 959427977), (73, 275999829), (127, 158645571), (219, 91999943), (239, 84301203), (381, 52881857), (433, 46531149), (511, 39428547), (717, 28100401), (889, 22663653), (1299, 15510383), (1533, 13142849), (1673, 12043029), (2667, 7554551), (3031, 6647307), (5019, 4014343), (9093, 2215769), (9271, 2173227), (17447, 1154811), (27813, 724409), (30353, 663789), (31609, 637413), (52341, 384937), (54991, 366387), (64897, 310461), (91059, 221263), (94827, 212471), (103487, 194691), (122129, 164973)]