19530225

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1$

素因数の和:647

約数の個数: 72

約数和(自身を含む): 41164032

約数和(自身を除く): 21633807

約数列:

[1, 3, 5, 9, 11, 13, 15, 25, 33, 39, 45, 55, 65, 75, 99, 117, 143, 165, 195, 225, 275, 325, 429, 495, 585, 607, 715, 825, 975, 1287, 1821, 2145, 2475, 2925, 3035, 3575, 5463, 6435, 6677, 7891, 9105, 10725, 15175, 20031, 23673, 27315, 32175, 33385, 39455, 45525, 60093, 71019, 86801, 100155, 118365, 136575, 166925, 197275, 260403, 300465, 355095, 434005, 500775, 591825, 781209, 1302015, 1502325, 1775475, 2170025, 3906045, 6510075, 19530225]

約数ペア:

[(1, 19530225), (3, 6510075), (5, 3906045), (9, 2170025), (11, 1775475), (13, 1502325), (15, 1302015), (25, 781209), (33, 591825), (39, 500775), (45, 434005), (55, 355095), (65, 300465), (75, 260403), (99, 197275), (117, 166925), (143, 136575), (165, 118365), (195, 100155), (225, 86801), (275, 71019), (325, 60093), (429, 45525), (495, 39455), (585, 33385), (607, 32175), (715, 27315), (825, 23673), (975, 20031), (1287, 15175), (1821, 10725), (2145, 9105), (2475, 7891), (2925, 6677), (3035, 6435), (3575, 5463)]