19173609

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{571}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 34978944

約数和(自身を除く): 15805335

約数列:

[1, 3, 7, 9, 13, 21, 39, 41, 63, 91, 117, 123, 273, 287, 369, 533, 571, 819, 861, 1599, 1713, 2583, 3731, 3997, 4797, 5139, 7423, 11193, 11991, 22269, 23411, 33579, 35973, 51961, 66807, 70233, 155883, 163877, 210699, 304343, 467649, 491631, 913029, 1474893, 2130401, 2739087, 6391203, 19173609]

約数ペア:

[(1, 19173609), (3, 6391203), (7, 2739087), (9, 2130401), (13, 1474893), (21, 913029), (39, 491631), (41, 467649), (63, 304343), (91, 210699), (117, 163877), (123, 155883), (273, 70233), (287, 66807), (369, 51961), (533, 35973), (571, 33579), (819, 23411), (861, 22269), (1599, 11991), (1713, 11193), (2583, 7423), (3731, 5139), (3997, 4797)]