19319625

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1321}}^1$

素因数の和:1355

約数の個数: 48

約数和(自身を含む): 37534224

約数和(自身を除く): 18214599

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 195, 225, 325, 375, 585, 975, 1125, 1321, 1625, 2925, 3963, 4875, 6605, 11889, 14625, 17173, 19815, 33025, 51519, 59445, 85865, 99075, 154557, 165125, 257595, 297225, 429325, 495375, 772785, 1287975, 1486125, 2146625, 3863925, 6439875, 19319625]

約数ペア:

[(1, 19319625), (3, 6439875), (5, 3863925), (9, 2146625), (13, 1486125), (15, 1287975), (25, 772785), (39, 495375), (45, 429325), (65, 297225), (75, 257595), (117, 165125), (125, 154557), (195, 99075), (225, 85865), (325, 59445), (375, 51519), (585, 33025), (975, 19815), (1125, 17173), (1321, 14625), (1625, 11889), (2925, 6605), (3963, 4875)]