19685796

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{571}}^1$

素因数の和:621

約数の個数: 72

約数和(自身を含む): 52756704

約数和(自身を除く): 33070908

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 156, 169, 204, 221, 338, 442, 507, 571, 663, 676, 884, 1014, 1142, 1326, 1713, 2028, 2284, 2652, 2873, 3426, 5746, 6852, 7423, 8619, 9707, 11492, 14846, 17238, 19414, 22269, 29121, 29692, 34476, 38828, 44538, 58242, 89076, 96499, 116484, 126191, 192998, 252382, 289497, 378573, 385996, 504764, 578994, 757146, 1157988, 1514292, 1640483, 3280966, 4921449, 6561932, 9842898, 19685796]

約数ペア:

[(1, 19685796), (2, 9842898), (3, 6561932), (4, 4921449), (6, 3280966), (12, 1640483), (13, 1514292), (17, 1157988), (26, 757146), (34, 578994), (39, 504764), (51, 385996), (52, 378573), (68, 289497), (78, 252382), (102, 192998), (156, 126191), (169, 116484), (204, 96499), (221, 89076), (338, 58242), (442, 44538), (507, 38828), (571, 34476), (663, 29692), (676, 29121), (884, 22269), (1014, 19414), (1142, 17238), (1326, 14846), (1713, 11492), (2028, 9707), (2284, 8619), (2652, 7423), (2873, 6852), (3426, 5746)]