21965490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4001}}^1$

素因数の和:4075

約数の個数: 48

約数和(自身を含む): 58061016

約数和(自身を除く): 36095526

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 61, 90, 122, 183, 305, 366, 549, 610, 915, 1098, 1830, 2745, 4001, 5490, 8002, 12003, 20005, 24006, 36009, 40010, 60015, 72018, 120030, 180045, 244061, 360090, 488122, 732183, 1220305, 1464366, 2196549, 2440610, 3660915, 4393098, 7321830, 10982745, 21965490]

約数ペア:

[(1, 21965490), (2, 10982745), (3, 7321830), (5, 4393098), (6, 3660915), (9, 2440610), (10, 2196549), (15, 1464366), (18, 1220305), (30, 732183), (45, 488122), (61, 360090), (90, 244061), (122, 180045), (183, 120030), (305, 72018), (366, 60015), (549, 40010), (610, 36009), (915, 24006), (1098, 20005), (1830, 12003), (2745, 8002), (4001, 5490)]